Since the 1970s, most Communist economies, incl. DPRK, suffered from stagnation, declining (1980s), then finally, collapsed in 1990s. North Korea and Belarus, could be said as the last 2 countries which still implements Communistic economies, but sadly, their economies are dying. China, as the world's largest socialist state, even has left it since Deng Xiaoping's era in 1978.